Problem A
Interval Cover — Problem Statistics

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Submissions	8779
Accepted submissions	2083
Submission ratio	23.73%
Authors	1103
Full solves [?]	844
Full solve Ratio	76.52%

#	User	Runtime	Language	Date
1	Bergur Snorrason	0.06 s	C	2019-07-21 02:03:26
2	Vincent Lagerros	0.09 s	C	2023-09-12 20:32:30
3	Johannes Svensson	0.10 s	C	2009-09-17 11:52:06
4	Thibault Raffaillac	0.10 s	C	2014-12-01 13:31:20
5	Mats Linander	0.11 s	C	2006-09-19 13:27:59
6	Henrik Sjögren	0.11 s	C	2006-09-21 23:46:02
7	Erik Gustafsson	0.11 s	C	2007-09-18 17:08:56
8	Mikael Auno	0.11 s	C	2008-09-18 22:58:37
9	Hidden user	0.12 s	C	2011-02-14 18:18:13
10	Oskar Arvidsson	0.12 s	C	2011-09-02 13:47:08

#	User	Runtime	Language	Date
1	Simon Ståhlberg	0.34 s	C#	2014-02-02 23:19:11

#	User	Runtime	Language	Date
1	Leif Eriksson	0.03 s	C++	2018-02-16 23:27:44
2	Garðar Ingvarsson	0.03 s	C++	2020-12-15 12:30:49
3	Olle Eriksson	0.04 s	C++	2017-12-03 01:34:22
4	Erik Nikko	0.04 s	C++	2021-01-29 15:10:44
5	Alexander Kravberg	0.04 s	C++	2023-02-27 00:22:25
6	Ng Mun Hin	0.04 s	C++	2026-01-01 10:49:11
7	Vo Khac Trieu	0.04 s	C++	2026-03-14 06:49:23
8	Nicholas Foo Chuan Le	0.08 s	C++	2022-12-05 15:51:06
9	Tomas Lestander	0.09 s	C++	2026-01-18 18:01:10
10	Ulf Lundström	0.10 s	C++	2006-09-06 23:42:56

#	User	Runtime	Language	Date
1	Hjalmar Höglund	0.12 s	Go	2025-07-04 10:08:53
2	Norbert Voelker	0.15 s	Go	2023-06-14 12:29:26
3	Vilhelm Melkstam	0.91 s	Go	2022-01-26 21:00:57
4	Vilhelm Melkstam	0.92 s	Go	2022-01-26 20:59:29

#	User	Runtime	Language	Date
1	Helmut Maierhofer	0.32 s	Haskell	2023-10-19 20:26:17
2	Hidden user	1.28 s	Haskell	2023-03-19 10:14:31
3	Brent Yorgey	1.63 s	Haskell	2021-02-22 04:54:38

#	User	Runtime	Language	Date
1	David Brink	0.39 s	Java	2017-02-04 09:53:36
2	Crystal Sharpe	0.42 s	Java	2020-08-21 17:52:20
3	Andreas Brytting	0.55 s	Java	2013-02-05 15:54:30
4	Hà Minh Ngọc	0.55 s	Java	2015-10-24 18:19:29
5	Håkan Warnquist	0.57 s	Java	2013-02-18 13:48:59
6	Jonas Haglund	0.61 s	Java	2014-02-09 14:44:44
7	Anders Ye	0.61 s	Java	2014-02-09 15:53:50
8	Rikard Blixt	0.62 s	Java	2014-02-04 12:40:46
9	Mattis Kancans Envall	0.62 s	Java	2014-09-29 19:44:50
10	Andrew Polizzotto	0.62 s	Java	2020-12-12 09:32:10

#	User	Runtime	Language	Date
1	Christian Pilegaard Cederquist	0.32 s	JavaScript (SpiderMonkey)	2023-06-29 23:56:04

#	User	Runtime	Language	Date
1	Benjamin Ye	0.56 s	Kotlin	2022-02-08 19:42:22
2	Silas Lenz	1.41 s	Kotlin	2019-02-07 15:57:08
3	Min-Zheng Shieh	1.92 s	Kotlin	2021-04-30 09:45:59

#	User	Runtime	Language	Date
1	Andreas Serra	0.45 s	Python 2	2014-02-06 15:24:01
2	Oskar Larsson	0.47 s	Python 2	2019-04-24 22:31:40
3	Hasan Kalzi	0.48 s	Python 2	2026-02-04 13:03:37
4	Maj Stenmark	0.50 s	Python 2	2018-08-03 14:43:50
5	Måns Magnusson	0.52 s	Python 2	2018-08-03 14:22:28
6	Henrik Adolfsson	0.53 s	Python 2	2017-01-22 14:25:23
7	Carl Martin Rosenberg	0.55 s	Python 2	2015-11-07 20:18:44
8	Fatima Afzali	0.61 s	Python 2	2019-01-26 21:37:35
9	Andreas Björklund	0.64 s	Python 2	2020-03-07 16:51:37
10	Johan Lyts	1.16 s	Python 2	2020-08-09 14:50:10

#	User	Runtime	Language	Date
1	Tobias Grandin Karanta	0.28 s	Python 3	2025-01-23 14:50:26
2	Ole Vik Lysne	0.29 s	Python 3	2026-02-01 13:51:09
3	Aboagye Tenkorang	0.30 s	Python 3	2026-02-16 15:24:26
4	Skills Nwokolo Anthony	0.30 s	Python 3	2026-03-03 00:52:04
5	Victor Eriksson	0.32 s	Python 3	2024-09-09 14:21:22
6	Oskar Arensmeier	0.32 s	Python 3	2025-04-01 16:09:54
7	Elias Martinsson	0.33 s	Python 3	2025-01-29 13:09:07
8	Hidden user	0.37 s	Python 3	2026-02-03 17:07:57
9	Rikaz Nismi	0.40 s	Python 3	2023-02-14 06:31:56
10	Jonathan Cho	0.41 s	Python 3	2025-03-26 22:26:53

#	User	Runtime	Language	Date
1	Vincent Lagerros	0.02 s	Rust	2025-11-03 16:20:40
2	Christoffer Andersson	0.04 s	Rust	2024-02-01 18:09:12
3	Markus Videfors	0.05 s	Rust	2023-02-13 00:48:28
4	Oskar Svanström	0.05 s	Rust	2023-02-14 09:14:31
5	Alexander Berntsson	0.05 s	Rust	2025-02-08 13:10:22
6	Gustaf Bergmark	0.06 s	Rust	2023-01-14 17:47:41
7	Emil Hultcrantz	0.06 s	Rust	2025-01-16 14:55:19
8	Leo Jarhede	0.06 s	Rust	2025-02-19 08:01:01
9	Victor Millberg	0.07 s	Rust	2021-12-03 13:59:53
10	Muhammad Rais Fathin Mudzakir	0.08 s	Rust	2021-05-13 08:16:44

#	User	Runtime	Language	Date
1	Felix Stenberg	0.07 s	Zig	2025-02-05 15:11:38

#	User	Length	Language	Date
1	Thibault Raffaillac	1336	C	2014-12-01 12:47:47
2	Hidden user	1569	C	2011-02-13 12:34:01
3	Ioannis Br	1638	C	2023-09-12 21:54:18
4	Oskar Arvidsson	1768	C	2011-09-02 13:53:42
5	Oscar Cusin	1835	C	2024-01-24 22:26:00
6	Mirel Cosulschi	1907	C	2024-11-06 17:01:22
7	Jacob Gummesson Atroshi	1927	C	2020-05-03 11:28:05
8	Vincent Lagerros	2184	C	2023-09-12 18:03:44
9	Ivan Petrov	2412	C	2020-01-29 08:00:33
10	Oskar Lundin	2423	C	2021-01-31 20:19:39

#	User	Length	Language	Date
1	Simon Ståhlberg	3632	C#	2014-02-02 23:19:11

#	User	Length	Language	Date
1	Jalvin Chan Jia Xiang	876	C++	2020-04-13 16:21:22
2	Hidden user	896	C++	2026-02-07 19:45:25
3	Thiên Tài Zero	911	C++	2017-10-31 17:19:44
4	Markus Mathiasen	981	C++	2022-08-06 18:58:57
5	Johan Wind	987	C++	2018-04-21 14:37:27
6	Atli Fannar Franklín	1009	C++	2020-05-05 16:49:03
7	Hyunjun Lee	1040	C++	2023-01-12 09:37:00
8	Oskar Haarklou Veileborg	1141	C++	2020-04-28 18:59:25
9	Hidden user	1156	C++	2024-02-13 13:37:16
10	Vignesh Ravibaskar	1162	C++	2026-02-04 00:12:19

#	User	Length	Language	Date
1	Norbert Voelker	2275	Go	2023-03-15 17:17:16
2	Vilhelm Melkstam	2536	Go	2022-01-26 20:59:29
3	Vilhelm Melkstam	2536	Go	2022-01-26 21:00:57
4	Hjalmar Höglund	3623	Go	2025-07-04 10:08:53

#	User	Length	Language	Date
1	Hidden user	2004	Haskell	2023-03-19 10:14:31
2	Brent Yorgey	3179	Haskell	2021-02-22 04:54:38
3	Helmut Maierhofer	3606	Haskell	2023-10-19 20:40:40

#	User	Length	Language	Date
1	Doug Goodman	2009	Java	2018-01-05 19:15:10
2	Crystal Sharpe	2111	Java	2020-08-21 17:53:13
3	William Zhao	2166	Java	2020-07-11 04:27:58
4	Eric Leow Yu Quan	2173	Java	2021-12-14 15:13:17
5	Emilie Hyslop	2237	Java	2021-11-13 01:52:13
6	Samuel Zackrisson	2464	Java	2016-09-19 11:05:09
7	Mohamed Faez Bin Shahlan	2497	Java	2023-02-04 08:27:04
8	Danniel Alcantara	2567	Java	2024-04-30 02:56:47
9	Bryan Jin	2585	Java	2018-08-22 21:22:38
10	Daniel Hollsten	2630	Java	2014-09-15 20:07:24

#	User	Length	Language	Date
1	Christian Pilegaard Cederquist	1437	JavaScript (SpiderMonkey)	2023-06-29 23:56:04

#	User	Length	Language	Date
1	Min-Zheng Shieh	1425	Kotlin	2021-04-30 09:45:59
2	Silas Lenz	4067	Kotlin	2019-02-07 15:57:08
3	Benjamin Ye	4875	Kotlin	2022-02-08 19:42:22

#	User	Length	Language	Date
1	Måns Magnusson	887	Python 2	2018-08-03 14:22:28
2	Henrik Adolfsson	945	Python 2	2017-01-22 14:25:23
3	Andreas Björklund	1051	Python 2	2020-03-07 16:51:37
4	Oskar Larsson	1076	Python 2	2019-04-24 22:31:40
5	Johan Lyts	1297	Python 2	2020-08-09 13:54:05
6	Carl Martin Rosenberg	1449	Python 2	2015-11-07 20:18:44
7	Maj Stenmark	1459	Python 2	2018-08-03 14:43:50
8	Fatima Afzali	1538	Python 2	2019-01-26 21:37:35
9	Andreas Serra	2609	Python 2	2014-02-09 17:14:45
10	Hasan Kalzi	5819	Python 2	2026-02-04 13:07:23

#	User	Length	Language	Date
1	Yong Mao	343	Python 3	2024-07-19 03:30:26
2	Iman Khodadi	415	Python 3	2024-02-16 15:59:57
3	Jorke de Vlas	421	Python 3	2024-01-22 18:49:55
4	Holger Dell	425	Python 3	2023-07-01 20:41:20
5	Jonathan Dastrup	526	Python 3	2024-09-12 02:42:53
6	Kevin Scott	729	Python 3	2024-01-27 16:04:23
7	Nicholas Russell Saerang	732	Python 3	2023-06-30 16:36:01
8	Hidden user	732	Python 3	2023-07-14 21:37:46
9	Jonathan Cho	732	Python 3	2025-03-26 22:25:18
10	Gabriela Quinteros	732	Python 3	2025-05-31 05:21:32

#	User	Length	Language	Date
1	Christoffer Andersson	2220	Rust	2024-01-24 18:25:02
2	Emil Hultcrantz	2835	Rust	2025-01-16 14:55:19
3	Gustaf Bergmark	2853	Rust	2023-01-14 17:47:41
4	Alexander Berntsson	2976	Rust	2025-02-08 13:31:29
5	Vincent Lagerros	3185	Rust	2024-02-04 21:10:27
6	Markus Videfors	3809	Rust	2023-02-13 00:48:28
7	Muhammad Rais Fathin Mudzakir	5219	Rust	2021-05-13 08:16:44
8	Leo Jarhede	6110	Rust	2025-02-19 08:01:01
9	Victor Millberg	6648	Rust	2021-12-03 13:53:43
10	Hidden user	7914	Rust	2019-01-16 18:01:56

#	User	Length	Language	Date
1	Felix Stenberg	8094	Zig	2025-01-29 16:00:40

Solution running time distribution